300b tubes
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Product
Site
Price
Listed
US Audio Mart
Western Electric 300b tubes
US Audio Mart
$1,000
Dec 10, 2025
US Audio Mart
$1,000
Dec 10, 2025
Canuck Audio Mart
Western Electric 300B tubes
Canuck Audio Mart
CA$1,500
Dec 20, 2025
Canuck Audio Mart
CA$1,500
Dec 20, 2025
US Audio Mart
EAT 300B tubes. Matched Pair
US Audio Mart
$1,300
Sep 6, 2025
US Audio Mart
$1,300
Sep 6, 2025
US Audio Mart
Canary Audio M90 300B Tubes Amplifier , Champagne
US Audio Mart
$3,300
Apr 25, 2025
US Audio Mart
$3,300
Apr 25, 2025
2dehands BE
300B tubes buizen high/end KR nieuwe tubes
2dehands BE
€800
33%
Jan 29, 2025
2dehands BE
€800
33%
Jan 29, 2025
US Audio Mart
Rare Unused Quad of 1997 Western Electric 300B tubes
US Audio Mart
$5,000
Sep 6, 2025
US Audio Mart
$5,000
Sep 6, 2025
US Audio Mart
Shuguang Golden Dragon Brown Base 300B Tubes - Matched Quad
US Audio Mart
$195
Dec 9, 2025
US Audio Mart
$195
Dec 9, 2025
Head-fi
Western Electric 300B tubes, 1997&1998, Good Cond. No noise
Head-fi
$1,295
44%
Nov 8, 2023
Head-fi
$1,295
44%
Nov 8, 2023
US Audio Mart
REDUCED - Western Electric 300B tubes, 1997&1998, Good Cond. No noise
US Audio Mart
$1,195
54%
Nov 4, 2023
US Audio Mart
$1,195
54%
Nov 4, 2023
US Audio Mart
Unused Quad of Western Electric 1997 300B tubes- Rare Price Drop
US Audio Mart
$4,500
Oct 30, 2025
US Audio Mart
$4,500
Oct 30, 2025
US Audio Mart
Air Tight ATM-300 Anniversary Edition with Takatsuki Electric 300B tubes
US Audio Mart
$8,100
38%
Jan 18, 2024
US Audio Mart
$8,100
38%
Jan 18, 2024
Audio-markt
Sun audio sun audio sv-300bsm 15w 300b monoblocks with western electric 300b tubes and tamura transformers
Audio-markt
€13,000
Dec 21, 2025
Audio-markt
€13,000
Dec 21, 2025
US Audio Mart
LINLAI 300b-z pair of 300b vacuum tubes
US Audio Mart
$200
Dec 27, 2025
US Audio Mart
$200
Dec 27, 2025
Reverb
MUZISHARE X9 Stereo Tube Amplifier with Remote Control,Single-Ended Class A, 300B Tubes, Built-in MM Phono Stage, Power AMP, 6.5mm Headphone Output,ac115 and AC230 Switchable
$2,099
11%
Sep 2, 2024
$2,099
11%
Sep 2, 2024
Audio Graffiti
PSVANE TUBES > PSVANE300B
Audio Graffiti
€380
Mar 27, 2024
Audio Graffiti
€380
Mar 27, 2024
Contrado Audio
Takatsuki ta-300b power triode vacuum tubes new 25 off 2 sets of 2 available)
Contrado Audio
€1,999
Sep 15, 2025
Contrado Audio
€1,999
Sep 15, 2025
Canuck Audio Mart
6bx7 6bl7 lot tested 8 tubes for assemblage 300b
Canuck Audio Mart
CA$80
Nov 29, 2025
Canuck Audio Mart
CA$80
Nov 29, 2025
US Audio Mart
Woo Audio WA5-LE v2 300B tube amp | Standard | Silver | Upgraded tubes available
US Audio Mart
$2,500
9%
Sep 29, 2025
US Audio Mart
$2,500
9%
Sep 29, 2025
Head-fi
[PD] Woo Audio WA5-LE v2 300B tube amp | Standard | Silver | Upgraded tubes available
Head-fi
$2,500
4%
Nov 11, 2025
Head-fi
$2,500
4%
Nov 11, 2025
